PhD Theses

PhD Thesis Defense by Arpita Saha on 12 September 2019 at 11 am

The PhD Researcher Arpita Saha from the Inorganic Materials and Catalysis Laboratory at ICMAB will defend her PhD thesis on Thursday, 12 September 2019, at 11 am at the Seminar Hall at ICN2. 

icmab
Aug 26, 2019

Tuning the Properties of Quantum Nanocrystals and Magnetic Nanoparticles using Spherical Ligands: Carboranes and Metallacarboranes

by Arpita Saha, Inorganic Materials and Catalysis Laboratory, ICMAB-CSIC

Date: Thursday, 12 September 2019
Time: 11 am
Venue: Seminar Hall ICN2

Abstract: 

A new architecture of QDs has been designed using Carboranyl phosphinate ligands in water which shows a unique luminescence phenomenon called Kinetic Fluorescence Switching (KFS). It has never been reported before and was possible due to the spherical ligands. Further QDs have been synthesized which combines the advantage of organometallic synthesis and aqueous synthesis in one method using a new design set-up. Also, for the first time QRods and QRings have been synthesized in water and their luminescence properties were studied using photo or electric excitation.

Magnetic nanoparticles have also been used along with borane clusters to form new nano-hybrids which have been tested for Boron Neutron Capture Therapy (BNCT) for cancer treatment. In-vitro and In-vivo studies were done using these new nanohybrids. Also, new kind of magnetic nanocomposites were formed as part of the European Horizon 2020 project KARDIATOOL using MWCNTs, magnetic nanoparticles coated with silica and functionalized with different functional groups which were further rused to form non-bonded complex with H[COSAN] for sensing layers in biosensors.

Supervisors:

  • Francesc Teixidor, ICMAB-CSIC
  • Clara Viñas, ICMAB-CSIC

PhD Committee:

  • President: Joan Bausells, IMB-CNM-CSIC, Spain
  • Secretary: Miquel Sola, Universitat de Girona, Spain
  • Vocal:  Abdelhamid Elaissari, University of Lyon-1, CNRS, Villeurbanne, France
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